BIOL 1201 Bootcamp.com - Cells and Organelles Questions
With Complete Solutions
the centrosome is an organelle found near the _____ of animal
cells
nucleus
a centrosome contains a pair of _____, which work together to
serve as _____ during cell division in animal cells
centrioles; microtubule organizing centers (MTOCs)
the _____ aids in cell structure, function, and movement in
prokaryotes and eukaryotes
cytoskeleton
the cytoskeleton is found within the _____ of
prokaryotes/eukaryotes
cytoplasm
what are the three components of eukaryotic cytoskeletons?
microfilaments; intermediate filaments; microtubules
_____ have the smallest diameter out of the three cytoskeletal
components
microfilaments
microfilaments are made of a double helix of two _____
filaments
actin
,the actin monomers of a microfilament have _____, so the
microfilaments do too
directionality
actin can undergo rapid _____, which makes microfilaments
useful for cell movement
assembly/disassembly
what are some examples of cellular processes that rely upon
microfilaments?
amoeboid movement; cyclosis; cleavage furrow formation;
muscle contraction
intermediate filaments have a diameter _____ the other two
cytoskeletal components
between (intermediate to)
_____ filaments provide cytoskeletal support for
maintaining cell shape, and they are also found in the nuclear
lamina
intermediate
intermediate filaments can contain many different types of
proteins - what is one of the most common?
keratin
keratin is a protein that concentrates in _____
skin, hair, and nails
intermediate filaments do not undergo _____, so they are longer
lasting
, rapid assembly/disassembly
_____ have the largest diameter out of the three cytoskeletal
components
microtubules
microtubules are a hollow tube, where the walls of the tube are a
helical polymer of _____
tubulin protein dimers
microtubules are similar to microfilaments in the sense that they
can grow and shrink _____
rapidly
_____ have directionality, so microtubules do too
tubulin dimers
what are some of the main functions of microtubules?
structural support; cell division; cilia/flagella
what are two types of motor proteins found in eukaryotic cells
and what powers them?
kinesins and dyneins; ATP hydrolysis
in what directions do kinesins and dyneins transport cargo,
respectively?
kinesins transport toward the plus end of microtubules, whereas
dyneins transport toward the minus end of microtubules
microtubule organizing centers (MTOCs) are in _____ cells
eukaryotic
With Complete Solutions
the centrosome is an organelle found near the _____ of animal
cells
nucleus
a centrosome contains a pair of _____, which work together to
serve as _____ during cell division in animal cells
centrioles; microtubule organizing centers (MTOCs)
the _____ aids in cell structure, function, and movement in
prokaryotes and eukaryotes
cytoskeleton
the cytoskeleton is found within the _____ of
prokaryotes/eukaryotes
cytoplasm
what are the three components of eukaryotic cytoskeletons?
microfilaments; intermediate filaments; microtubules
_____ have the smallest diameter out of the three cytoskeletal
components
microfilaments
microfilaments are made of a double helix of two _____
filaments
actin
,the actin monomers of a microfilament have _____, so the
microfilaments do too
directionality
actin can undergo rapid _____, which makes microfilaments
useful for cell movement
assembly/disassembly
what are some examples of cellular processes that rely upon
microfilaments?
amoeboid movement; cyclosis; cleavage furrow formation;
muscle contraction
intermediate filaments have a diameter _____ the other two
cytoskeletal components
between (intermediate to)
_____ filaments provide cytoskeletal support for
maintaining cell shape, and they are also found in the nuclear
lamina
intermediate
intermediate filaments can contain many different types of
proteins - what is one of the most common?
keratin
keratin is a protein that concentrates in _____
skin, hair, and nails
intermediate filaments do not undergo _____, so they are longer
lasting
, rapid assembly/disassembly
_____ have the largest diameter out of the three cytoskeletal
components
microtubules
microtubules are a hollow tube, where the walls of the tube are a
helical polymer of _____
tubulin protein dimers
microtubules are similar to microfilaments in the sense that they
can grow and shrink _____
rapidly
_____ have directionality, so microtubules do too
tubulin dimers
what are some of the main functions of microtubules?
structural support; cell division; cilia/flagella
what are two types of motor proteins found in eukaryotic cells
and what powers them?
kinesins and dyneins; ATP hydrolysis
in what directions do kinesins and dyneins transport cargo,
respectively?
kinesins transport toward the plus end of microtubules, whereas
dyneins transport toward the minus end of microtubules
microtubule organizing centers (MTOCs) are in _____ cells
eukaryotic
